4 isopropyl 3 5 dimethylheptane July 8, 2019 16 32 64 128 3 ethyl 4 isopropyl 2 5 dimethylheptane 4 isopropylheptan 4 isopropylheptane 4 isopropyl 2 4 5 trimethylheptane 4 4-dimethyl-3-ethylheptane
